1 86 THE TANGANYIKA PROBLEM. 



in length of snout. 5 times in length of bead, and i§- in. interocular width ; eight 

 -mall scales on the cheek ; larger scales on the opercle. Eighteen 

 .- part of anterior arch. CYII. 16 ; spines subequal from 



the fifth, which measures \ length of head ; longest soft rays \ length of head. 

 Pectoral pointed, § length of head. Ventral not half as long as the distance 

 between its base and the vent. Anal III. 18 ; spine; Caudal : 



Caudal peduncle twice and a half as long as deep. Scales very small, 140 in a 



longitudinal series above the upper lateral line, — in a tra* 



- : - : 



Brownish a fce beneath ; a series of large, rounded blackish spots on each 



side of the back above the lateral line, alternating with a -rtical blackish 



bars on each side of the body ; on the tail, from the middle of the soft dorsal, the 

 spots unite into a band which extends to the caudal, and the vertical bars likewise 

 fuse to form a lateral band ; a blackish spot on the opercle, another at the base of 

 the ventral ; two black bands on the dorsal, a basal and a marginal. 

 j.o millim. 

 Described from a single specimen from the west coast at TembwL 

 This second species of the remarkable genus Bathybates differs from its congener 

 in the smaller eye, the more numerous gill-rakers, and the smaller scales. 



: Pelmatochromis folylepis. — Blgr. 1900. 



Depth of body : 1- times in total length, length of head 3 to 3i times. 



Snout with straight upper profile, \\ times diametr tep, its length 



not exceeding the width of the praeorbital region ; diam- 3§ time 



in length of head, equal to or a little greater than interocular width ; maxillary 

 extending nearly to below anterior bordt: ery small, in four or five 



irregular rows in both jaws, the outer somewhat larger : four or five series of scales 

 on the cheek : larger scales on the opercle. Gill-rakers short, lamellar, denticu- 

 late, 14 or 15 on lower part of anterior arch. Dorsal XY.-XYI. 14-15 ; spines 

 subequal from the sixth, which measures § or a little more than \ length of head. 

 Pectoral pointed, falciform, at least as long as head. Ventral reaching vent, the 

 outer ray produced into a filament. Anal III. 8 ; third spine much stronger than 

 dorsal spines, nearly i length of head. Caudal rather deeply emarginated. Caudal 



6-7 

 peduncle a little longer than deep. Scales with denticulate bordr: - - - 



- : — 31 



lat. 1 c . the upper extending to below the last spines or the first soft rays of 



_~— 48 



the dorsal, the :^inating a little behind the shoulder and extending to the 



caudal fin. Body golden, olive on the back, purplish streaks along the dorsal and 



caudal fins, sometimes forming a wide-meshed network. 



Total length, 300 millim. 



-CAMPSI. — Blgr. 1898. (Fig., p. 179, low-: 



Depth of body 3J times in total length, length of head 3. Snout short, with 

 curved upper profile, slightly shorter than the eye, the diameter of which is z\ in 



